8 awesome application of diodes in circuits.
ฝัง
- เผยแพร่เมื่อ 15 ส.ค. 2023
- you will be shocked if you look closer to diodes, they are not as simple as you think, they can do various tasks in circuit and you need to know where to use a diode to be a great circuit designer.
in this video i will introduce 3 main type of diodes with 8 application of them in circuits, of course this is not all types and applications of this lovely component but it is enought to begin with diodes.
What is difference between ideal and real diodes?
How much voltage drop on a diode?
What are diodes are used for in circuits?
Where diodes are used in circuits?
What are main parameters of a diode to consider?
What is an ideal diode?
What is main application of diodes?
How many diode types are available?
How much voltage a diode can drop?
Why diodes are used in circuits?
What is a zener diode?
How to make reference voltage using zener diode?
How to use a zener diode to protect circuit from over voltage?
Here in this video you will get answer of these questions
I don't often comment on videos and I'm not one to "subscribe" but had to do both on this one because it's obvious to me that you love to teach and both your visual aids and the order of revelation of your simple explanations are, IMHO, impeccable. VERY WELL DONE, good Sir!
It is an honor for me that you spent your valuable time writing a comment for me
thank you for supporting me ❤️
I felt the same.
A fantastic video for the hobbyists, and a great refresher for the professionals. Easy to follow, concise and very well executed. Thanks for sharing this and spending your valuable time creating this content 👍
Thank you too, for watching the video and writing such a encouraging comment 😃, so nice of you
Yours is one of the best electronics tutorial channels on TH-cam. Thanks, subbed.
Thanks for the sub!🥳
Man, glad you are back. Have seen your different videos about electronics (open collector, microcontrollers). Hope you'll add back them all. Subscribed already
Thank you for sub. I have face an issue with my MCN and because of that I have created new channel, I am going to add old videos along with new videos
Very helpful! I sure hope my diodes won't mind being in my circuits now! ✨😃
😂
Nice video. It's interesting to connect a piezoelectric sounder to the output of the infrared receiver. You can hear the pulses and hear differences between different brands of remote!
Yes that is nice. But the sound fifference is not because of band difference, it is because of the difference in the code the remote sends.
IR remote controllers are my favorite, I will do projects with that as soon as possible
Looking forward to your next video 🙂
This fellow is a legend, detailed explanation, and friendly teaching. Well done
Thank you dude for your warm and encouraging comment 😃
good presentation. minor nuance though: at about 6:00 in the example of reverse circuit protection you referred to using a schottky diode but the symbol you used was that of zener ;-)
Thank you for noticing the point. Sharp lines are presenting zener diodes and curvy symbol presents schottky. 👍
@@elewizard well, an S and a Z are still different (inverted) whether you use curvy or sharp lines.
I have so many questions about the magic of circuits and you answer a few. Thank you.
I will answer 😉more in next videos
very clear explanation, it is good to collect knowledge in one lesson, well done
Glad you liked it!
Used, 3 t05 cans with 12 diodes in each(closest to identical as you can get) 1/2 of each can were used to pass + and the other half of the can passed - placed between 2 opamps. Out of one opamp +/- to Input of the next +/- the delay caused by the two18 diode strings gave us the ability to do limiting and compression on audio
I have subscribed immediately! Let’s wait for the next insightful videos. Bless you.
Awesome! Thank you!
New videos are coming soon
@@elewizard Thank you so much 🙏As a beginner, I want to understand what is bandwidth of a signal. I have googled but can’t find a simple explanation of how bandwidth related with hertz.
Subscriber number 26 here!
Just found your channel.
Great content - thank you for taking the time to make this video.
Welcome dude. Thanks for sub 🥳🥳🥳🥳
Excellent presentation of diode capabilities and common usage.
Many thanks!
Mr.
He said, You got him.
Your efforts sharing this valuable info are greatly appreciated. ❤
My pleasure 😊
your content is amazing, you are my new teacher. thanks
Happy to hear that! 🥳
A full wave rectumfryer never gets old as an electronics joke. lol
😂
Hello, great video, thank you. Good to see you back, I was sad to see you disappeared from youtube! Where are the older vids?
I had trouble with my MCN. This is my new channel and I am going to add old/new videos here
WAW!! It was the most beautiful coincidence when I met your channel.❤
You are most welcome , cheers 🥂
Very good and informative video!
Thank You!
Glad it was helpful!
Well done, nice video,thanks for sharing it with us :)
Thanks for watching!
you are a great teacher. thank you for shearing this knowledge.
Wow, thank you so much. Thank you for being here 😊
I like the positive mood you brings us with you...🙂 @@elewizard
You have a great channel, I have learnt a lot watching you. Thanks for sharing.
Thank you for watching
Another application is to use the reverse-bias junction capacitance for adjusting the frequency of a tuned circuit - varying the reverse voltage varies the capacitance, which can then change the frequency of an oscillator. Varactor diodes are specialized for this purpose, but the effect can be demonstrated with pretty much any reverse-biased diode.
This is EXCELLENT!!!
Thank you so much
Great video friend!!
Did you used to have a different channel? I remember watching a video from you about capacitor applications that was extremely informative amd helpful. But the video is no longer available says TH-cam.
No, I don't. My last channel is not available because of the issue I had with my MCN. 😑
I am going to upload old and new videos here 👍
Glad your back!
Thank you dude❤️
This channel is great, I'm consuming each video at an alarming rate.. please keep it up, your examples and explanation is superb.
Wow, thanks!
Great video. Thank you very much!
You are welcome!
Thank you so much for excellent presentation and informative videos. I have already subscribed.
Thanks and welcome ❤️
Excellent explanation..! I appreciate your hard work..!
It's my pleasure
A lot of information here` explained very well.
Glad you liked it❤️😃
Very very good video. Thanks
Glad you liked it!
I appreciated the style of teaching, subscribed! Greetings from Italy
Glad you liked the video, you arr most welcome my Italian friend 😊
Good presentation sir. Keep it up.
Thank you, I will
Knowledgeable video.
Glad you think so!
Your explanation is amazing. Please make more videos on understanding electronic circuits and with emphasis on what each component does in the circuit.
Thank you dude. Will do 👍
excellent explanation
Glad you liked it!
Thanks for sharing subscribed
Thanks & welcome
Outstanding channel, thanks for taking time to share information.
I appreciate your kind words. Thank you for taking time to comment ❤️❤️
another fantastic video, I've been making notes.cheers!
Glad you like them!🥳🥳🥳🥳
@@elewizard tbh for this sort of stuff you are better than Mehdi, the way you list things, to make note taking easy. whereas, and please don't be offended, medhi is more entertaining to watch. (don't think i expect you to start zapping yourself!)
@@KarldorisLambley thank you for your feedback. Yes I know, mehdi is an artist more than an engineer 👍
It is quite normal to get more views
@@elewizard pah. more views? means nothing, popularity is over-rated. this sounds bad but i think most people have dreadful taste. he may get more views but you have taught me far more. why do you not have patreon or that buy a coffee thing? i'd gladly give you a few quid.
and wow. yesterday you had 6.8k subscribers, today is 7k. congrats!! that is nearly 3% in one day!
Yeah, my progress is fine. We are going to create big community 🥳
At 7.42, you mentioned a video on charging a backup battery setup, and I am most keen to see that, but I can't find it on TH-cam .
Can you direct me to that one please?
Great videos btw.
I said in one of my next videos, the video is not published yet. The video is going to publish in 10 days
Respect for you. Your channel helps me to learn about electronics. You have a new subscriber.
You are most welcome my friend, I am proud of having audience like you 😃
Thank you again for such a broad explanation and clarity❤
Glad it was helpful!
I really enjoyed this video and have now subscribed. One question though - Re the induction motors, why do you usually see a capacitor across the terminals and not a diode? Or do they serve different purposes?
They serve the same purpose. To protect from high voltage spikes, but they do it slightly differently and at different price points. If the manufacturer can get the capacitors cheaper than the correct size diode, they'll use the capacitor. Because the diode would have to withstand a potentially high voltage and current spike that would make them more expensive.
Good question! The answer is not simple to describe.
In next week's I will upload a video about capacitors and their applications. One of experiments I will cover this subject 👍
An induction motor needs a rotating magnetic field to operate. On a single phase motor a extra separate winding connected in series with a capacitor gives a phase shift or timing difference between two windings causing the resultant field to rotate and this causes current to be induced in the rotor and the rotor will turn. Nothing to do with spikes.
@@colinbatey7876 that's an ac inductance motor. The original referred to a DC motor
It did, but the question said induction motor which as you say is an AC motor.
Hi and thx for your effort.
I wish someone would make a video on how to find/calculate value etc for real life situations for us ignorant enthusiasts.
Let me explain. I am using lots of buck converters - boosters and lithium solar chargers. I use bear modules for cost and flexubility. In their instructions are mentioning not to reverse polarity and put a diode etc. How do I find which diode? how do I calculate values? I have clamp meter and accurate multimeter. No more fancy bench instruments.
I do not want to become an electrinics engineer just solve everyday little problems in laymans terms.
Any help or direction much welcomed. TNX
4 things on my mind to add: 1) LEDs can drop up to 2-4V, depending on its colours! The bigger the band gap, the "colder" the colour and bigger voltage drop! 2) I never heard of flywheeling diode, do you mean flyback or freewheeling? :D 3) I'm missing the explanation of the flyback diode - it's dropping that peak voltage because it allows the coil to "decharge" through itself (to absorb the inductive current kickback), making a nice peak current "circle" flow between the diode and the coil, instead of your circuitry. 4) I'm surprised you didn't mention opto-isolators alongside with LED transmission devices, those are my favorite type of power protection devices!
1-i mentioned the voltage drop capability 2-yes flywheel is used 3-correct 4-i can't mention everything, I have to ignore many other items to keep the video length acceptable
Excellent. Many thanks.
My pleasure!
Man, thank you for this great vídeo with all the basics 👌
We (except the haters) all greatly appreciate your time and effort!
I appreciate that!
Thank you for supporting me ❤️❤️❤️
Sir i have being following your channel, but i can't find Your old channel anymore what's wrong with it, i do love your videos
I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos here.
nice video,, can you make a video about replacing diode on solar panel?
Thank you so much for your suggestion. I will consider your suggestion
Wonderful tutorial! As you rightly mentioned that zener diode can be used to protect the circuit from over over-voltage, can it protect an ac voltage? Can it take care of under-voltage?
No, It can't protect AC or under voltage 👍
You can use a "Voltage dependent resistor" AKA: Varistor
عالی بود استاد
Thank you dude
Good evening sir...
Very nice video....
What happened with your other channel...
I really missed u and your video...
Lot of ❤ from odisha, India
High dude, I missed you too.
I have faced an issue with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos.
Thanks!
Thank you so much ❤️❤️❤️❤️
6:02 good explained
Thank you😊
🌺🌹 Excellent 🌺🌹🌺
Thank you! Cheers!🥳
So I can use a ZENER diode to block current in a circuit when the voltage is below the zener diode voltage?
Yes, you can
Sir, I am from Bangladesh 🇧🇩.
I recently search your channel but could not find.
Today Got you❤️
So nice of you.
I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos here.
nice channel!
Glad you enjoy it!
Hi i wanted to know that how circuits are designed. How do engineers know where to put a capacitor, resistor or inductor.
I think its an advanced topic but a simple explanation will do enough.
Best video man
❤❤❤❤
Thank you so much 😀
I am learning , that's good.
Very nice, keep watching 👍
I like your video, i like the circuit to charge battery
Thanks for liking.
Thanks
Your welcome
How do you read the code printed on zener diode should you not be able to get the data sheet for the diode?
Would appreciate it for the assistance as I feel that all my research to my question is leading to no answer and thus I hope that you will be able to assist me.
You're explaining on components and examples are the best that i have seen and even advise my colleagues to watch and subscribe to your channel.
You need a microscope to read tiny printed text on the diode, then search for 'SMD zener diode code table' on Google. You will reach many tables that map the smd code to device name 👍
Neetest work Shop
I love it ❤
Thank you for watching 😊
I did not know S and Z rule and have worked in electronics for many years, thanks
Glad it was helpful
radja + lep, just saying, can you do the driver?
what happened to the old channel? I saw all your videos long time ago but here it looks reuploaded! is this a new channel?
any way I subscribed and waiting for you to Explain more electronics and more concepts
good job my friend
Hi, yes this is a new channel.
I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos.
Glad you are here
Thank you very much for all the knowledges..appreciate it!
My pleasure!
Sir, I got your feedback on the question that I raised. I commend you for it.
You used 1N4148 as a flyback diode in an indictive circuit instead of a power diode such as 1N4007, Why? I think that 1N4148 is a signal diode and used in a circuit that requires high switching speeds.
Please, refer me to your videos on Operational Amplifier and how one can use it to compare AC voltages.
Thanks.
There is no need to use power diode there because voltage and current is not much high, actually power dissipation is low then we can use 1n4148 or other diodes there.
I will make a video about OPAMPs as soon as possible 👍
@@elewizard Thanks so much for your feedback. I am looking forward to seeing your video on OPamp.
I would prefer you show me how to build 8 useful devices with diodes.
Maybe in next videos
Awesome video. New subscriber here.. Please also make video discussing applications of inductors.
Welcome aboard 👍
I will make it as soon as possible
There is another way to reverse polarity protect with a diode, that's by placing a regular diode in reverse bias across the power input so long as your power source is fused. Connecting the power backwards would pop the fuse before the diode burned.
Yes, exactly. And then the user have to replace the fuse or sometimes the user think that the device is broken.
@@elewizardIt's not a particularly good solution. It's just something that is sometimes done.
@@spudhead169 no, you didn't. 👍
It used to be done quite a bit with car audio equipment, but not so much these days due to some folk wiring directly to the battery in reverse, so no fuse inline. The best reverse protection is really the p-channel mosfet approach. Very little loss.
@@spudhead169 There are so many approaches, each of which has its own advantages and disadvantages.
Thank you
You're welcome🍻
Is this your new channel. What happened to your older videos
Yes, this is new channel.
I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos here.
Anyone know what would be oscilloscope banditech/samples if I would like to see and keep testing (able to see what what is happening) these at home with these diodes (and possibly some NAND /transistors) ? On this video looks like it is 100Mhz Oscilloscope, that would be pricy for just learning and small tests. Thank you
Yes the oscilloscope in the video is 100 Mhz but for these experiments a 20Mhz would be enough
Yes the oscilloscope in the video is 100 Mhz but for these experiments a 20Mhz would be enough
Oh thank you 😊, 20mhz is affordable
I have a basic question I was hoping you could answer. Normally, a resistor is used along with the diode to limit current. However, when used as a rectifying diode bridge, I normally do not see any resistors being used to limit the current. So my question is, in that case, what limits the current? Is it only because they are high current diodes and therefore don't require any external current limiting? Thanks!
It is because of the power supply.
The output current of power supply is limited, so you have to use a diode with a current rating higher than the power source. Then the power supply can't deliver current needed to destroy the diode. I hope you got the answer ❤️
@@elewizard Yes, thanks. So in general, if the diode rating exceeds the current delivered by the circuit, then you don't need a current limiting resistor.
Is there a specific way to determine which voltage and amperage of a diode I would need for a a circuit. Thanks for the video btw. I now know I need Schottky and Zenner diodes for my applications. I'm trying to make circuits for multiple power supplies and want to use the diodes properly. So for example a wall 12v power supply, a solar panel setup , and separating different chemistries of battery banks for charging and discharging in the same circuit along with a capacitor bank for large voltage spikes from motors. I like a challenge I guess. I literally want my Off grid setup to have as many options as possible for stabilities sake. Getting into solar has revitalized my interest in making circuits. Especially when DC to DC power circuit adapters isn't as standardized for the home as it should be. I see a business opportunity to make it more plug and play. The current environment is having the end user play with naked circuits to get what they need. Which is frustrating when running everything from DC in a home on solar. The closest thing to plug and play is car auxiliary plugs and USB 3 and USB type C but it limits what can be done to 12v and 5v. In a DC only setup you sometimes need 24v and 48v devices. I'm aware of buck and step up converters but they are not plug and play. Companies simply do not supply DC only adapters for their devices if its possible to do so which creates the headache I'm in, but I do spot the opportunity to have a business that they can point to for the purpose, and trust that it will run their devices safely for the end user. I'm working out a plan for it. Maybe one day you will see the converter option on power brick inverters for your devices. 🤷♂ All I know is why did it not happen sooner. Its even an advantage for Survival and Emergency situations because DC is the last power source to work. Even in a pinch. Thank you for listening to my TED talk lol.
wtf
youre drunk.
@@CleoKawisha-sy5xt and you're not very good at being constructive. The only thing making me drunk is curiosity.
Greattt😅
Please explain inductor
Will do👍
Mr. Exist applications to switch his lasers, maybes calls Spectogram or Spectrum, something with Hz, I almost put him down long times ago.
He want to kill himself, gives for us that he want to stop.
Thank You.
Thanks for the video. Can you please in the future remove the "bleep" sound? Hurts my head.
OK, In new videos I will remove that sound. Bad news is I have few videos ready to upload and there are beep sounds on them
@@elewizard No worries since they are already made. Thanks for your consideration for the future.
I believe, that these components have a complete computer inside, especially the SMD types. To control the computer, first it must be installed into a device. When you experiment with charging, your diode become removed from its default blacklist, and starts its normal operation, for example removing the memory effect from batteries. Same with SMD resistors, but when you destroy one, there is no computer circuit inside. So the component is on blacklist due to radiation, and the component’s memory effect status causes its default regional blacklist.
I believe that you can become a good writer in the science fiction genre 😉
Another important ingredient of electronic components is smoke. If you exceed voltage and temperature you will let the smoke out and it's finished.
Solar cell is a diode. If you put power into solar cell it will emit deep red light visible in camera. Diode can be used to protect relay contracts from REMF from a heavy DC inductive load when contracts open. The diode absorbs the energy that produces momentary arc in relay contracts.
Yes, exactly. Thank you for your comment
A diode is not always the best choice for contact protection with an inductive load - or for protection of the driver of a relay coil.
A simple diode acts more-or-less as a short circuit across the inductor when the contacts open or the driver turns off. That means that it can take substantial time to discharge the energy stored in the inductor. Often that is not a problem, but sometimes it is. For example, a diode across the coil of a high-power relay not only delays the opening of the contacts but it slows the opening once that actually begins. That can lead to increased arcing of the contacts, shortening the life of the relay.
Make similar video for coil inductor
Will try
You can also use silicon diodes als switches for low voltage ac signals. As long as the ac signal is lower than the forward voltage the signal is blocked. When you now add a dc voltage to the ac signal, which is higher than the forward voltage, the ac voltage will appear behind the diode on top of the dc voltage. Using 2 capacitors before and after the diode you can switch the ac signal on and off.
You can also use a full wave recitifier to switch between a current sink to ground and a current source from the positive supply voltage a point in your circuit whos voltage is between positive supply voltage and ground. you just need to connect one of the ac inputs to your circuit point and the other between ground or positive supply voltage. The current source and sink are connected to the dc outputs of the rectifier. In this way you can make a 555 astable multivibrator whos output switches the current source and sink to the capacitor point which gives a precise linear voltage ramp, which can control other circuits (for instance a vc oscillator or a vc PWM generator).
Thank you for your comment. I will cover these items in updated video of this.
Diodes as signal switches suffer from nonlinearities, so they are not always useful. They are good for switching RF where the signal amplitude is quite small and a bit of distortion is tolerable. It is important that the DC bias be applied from a source that is reasonably high impedance relative to the signal path impedance. In RF circuits this is usually accomplished by means of an inductor in the DC path. A properly designed current source or sink also works (an ideal current source or sink has infinite output impedance; practical ones don't but can be very good).
@@d614gakadoug9 yes, you can use a full wave rectifier (4 diode bridge) to switch a current source or a current sink to a load by control voltages. And the currents can be different or you can modulate them by use of voltage control. I have used such a circuit for charging and discharging of the capacitor in a 555 astable multivibrator by exit voltage control in order to make a very precise voltage to pwm converter.
The only component I think of as “simple” is the wire. And even that requires a bit of thinking when the gauge becomes crucial in the application. 😢
Good point 👍
Put the yappy dog in another room lol 👍
we used to get potable 12" tvs from the tip and change the diode then sell them i was only 10 made a fortune in the 70s
from caravaners that had put the leads wrong way around
the load normally only takes the current needed
I create a node on common positive side, using diode to merge them using a full bridge diode, in my country Indonesia its actually cheaper to buy high amps diode by using full bridge rectifier 😂
Good solution 😂
قربون لهجت برم من 🤩😘
Khoda Nakone ☺️
Many cameras have a IR Filter so the Light of a Remote can't pass the lens
Cellphone cameras can sense IR
@@elewizard for example mine not. It is an iPhone 7 Max and if i hold a Remote in front of it, no sign.
a diode is the best invention ever, Even betterthan the light bulb. (even though they were origionaly a light bulb)
Maybe, I think transistor is more important than the diode
@@elewizard Please make a transistor without a diode.
I'm new to this. I'm an electriian. But I have a question
You are most welcome. Ask your question in a new comment
If you series diodes, you can create a time delay
Yes, you need milions of diodes to make 1sec delay. And you need kilos of voltage to pass through the diodes 😉
EDITED
You need to explain that. I spent decades designing electronics and never once used the inherent characteristics of a diode to produce a delay.
Are you referring to the so-called forward recovery time of a diode? It is real, but not something predictable enough from diode to diode to have any practical use for delay purposes. Very few diode datasheets specify forward recovery time.
The reverse recovery time of a diode means there is a delay in turn off of a diode, but again that isn't something I'd ever consider for deliberate delay.
If you had a ramp or something similar then you could use a diode or a few diodes in series to prevent significant conduction during part of the ramp to some down-stream circuit, producing a delay. You'd have to contend with the production spread in the forward voltage of the diodes and its fairly large temperature dependency. It could be useful in some circumstances (e.g. in a zero crossing detector).
hehe hmm, I think the zener diode might have saved my arduino from literally smoking the other night =D
You were lucky 😉
Very strange things happens at time 3:38-3:39 . Suddenly the circuit transformed to something quite different that it was a moment ago, but there was a perfect oscillogram. I have an idea what difficulties author experienced . Likely it was the ground which is common for both channels. It is very sad that the author didn't clearly show how he resolved that.
Yes, you are right. But I think it was not necessary to explain what exactly happened, because my goal is to teach the concepts not the experiments.
However, your comment shows that you are experienced 👍
What happened to your channel "x electronix master club"? It disappeared minute after I watched your last video without a trace!
I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos.